• Another tragic element of the ongoing fight in Libya -- hundreds of if not thousands of refugees have died or disappeared in shipwrecks as they try to flee the country. (CNN)

• Rights groups in Syria say 750 civilians have been killed in government crackdowns on protests against President Bashar Assad. (MSNBC)

• U.S. officials will be allowed to question the three wives of Osama bin Laden who were detained by Pakistani forces following the raid that killed the al-Qaida leader, but one of his sons reportedly escaped during the raid. (ABC News)

• The Mississippi River has crested at almost 48 feet, and it likely will take weeks for the flood waters in the Memphis area to recede and the full extent of the damage to be known. (AP)

• Well, that was fun while it lasted: Donald Trump's quick rise to the top of the polls among possible GOP presidential candidates has collapsed. He's now in a tie for fifth place with Rep. Ron Paul. (Public Policy Polling)

• A survey by Consumer Reports reveals growth in the number of kids using Facebook who are under the site's minimum age, 13. About 7.5 million underage users had accounts in 2010. (Bloomberg)

• Microsoft, which has struggled to keep pace with Google and Facebook, announced it has purchased the video-chat service Skype for $8.5 billion. (Mashable)